Jan 25, 2002 1:01 AM

Australian-based Aristocrat Leisure Ltd., the world's second largest slot maker, said it filed a lawsuit against IGT over an alleged patent infringement claim.

International Game Technology, based in Reno, accused Aristocrat last month of infringing its patents after Aristocrat acquired Casino Data Systems.

Aristocrat, which has moved its corporate headquarters to Las Vegas, is seeking an injunction against IGT for further sales on games such as Austin Powers, Pick-n-Pop and Puttin' on the Hits games.